Always go to the book for load references.
One book One Cal is your friend there, and well worth the outlay.
I used to use 23-23.5Grn N130 with 40grn VMax COL of 2.1-2.2 and they all touch at 100yds. This is a mid point load.
I also ran N133 from 23-25 Grn with similar results. The only reason not to use the 40grn is they run fast but also run out of steam quite quickly.
A better load is the 52/53 Grn bullets with around 23Grn N133. Again a mid point load but very accurate, and longer legs than the 40Grn.
Anything in 55Grn is ideal for the .223. It was pretty much designed to shoot that weight of bullet.
I found the Hornady 2265 with a mid point charge of N133 would group 0.5 MOA all day @ 100yds.
N133 is also very good with 60Grn bullets. Mine produced very small holes @ 100yds with 60Grn VMax or Nosler so long as I did my bit.
Just in the process of working up a new load with Sierra 1375 at the moment (cos it's fun ).
Load carefully, and always work up.
not heard much about h4895 is this not suitable ?
I find 40g Vmax shoot best in my CZ527. My powder of choice is 26g of Benchmark. Local RFD is currently out of the 40g Vmax, so I took a box of Scierra Blitzkings in 40g to try....it'll be interesting to see how they go compared to the Vmax. Only real visible difference is the flat base on the Scierra as opposed to the slight boat tail of the Vmax.
I tried H4895 and it produced some excellent flame thrower effects from the mod. It shot OK but I found it far better suited to the .308.
If you really want a good powder for .223 (and if you can find it) try H322 or Benchmark. But far better to stick with Vhit N130, N133 or N140 as these are less likely to become unavailable.
Invest in some quality mounts. and try some 40gn vmax loads.
"Shooters, regardless of their preferred quarry, enjoy their sport for its ability to transfer them from their day-to-day life into a world where they can lose themselves for a few hours". B Potts.